High Level Alloys Ferro Silicon Aluminum

A method for preparing polysilicon ferro silicon aluminum from iron tailings belongs to the field of flocculant preparation technology. The main contents of the preparation method are as follows: firstly, the iron tailings are acidolyzed, the acidolysis reaction product is filtered to remove the precipitate, the supernatant is extracted, and then hydrogen peroxide is used for oxidation, so that all Fe(II) in the system is converted into Fe(III), and the oxidized system is placed in a water bath for self-hydrolysis to polymerize to obtain polysilicon iron aluminum. The preparation method provided by the present invention is to take iron mine tailings as the main raw material, and the polysilicon iron aluminum prepared is suitable for treating high turbidity suspension, domestic sewage and industrial wastewater, and the preparation method is low cost, the process is simple, reduces resource waste and environmental pollution, and has significant economic and social benefits.

1.A smelting method of low-alumina ferro silicon aluminum, according to the weight of the molten ferrosilicon 6000000 parts ~ 10000000 parts, dolomite 7 parts ~ 10 parts, quartz stone 10 parts ~ 15 parts, white ash 10 parts ~ 15 parts, and perform the following steps: pour dolomite, quartzite, white ash into the molten ferrosilicon in the above molten state, and react at 1500 °C ~ 1600 °C for 30 minutes ~ 40 minutes; During the above reaction, high-pressure gas is filled into the molten ferrosilicon to keep the molten ferrosilicon in a tumbling state; After the reaction is carried out to a predetermined time, the high-pressure gas is stopped, and the molten ferrosilicon is poured to form low-alumina ferrosilicon. The high-pressure gas can make the molten ferrosilicon always in a tumbling state, which is conducive to the reaction of molten ferrosilicon with dolomite, quartzite, and white ash added to it, so as to ensure that the quality index of low-alumina ferrosilicon meets the predetermined requirements.

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